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Complete Molecular Biology of the Cell 6th Edition Alberts Questions & Answers with rationales . Study of structure, function, and behaviour of cells - CORRECT ANSWERS--Cell Biology All living cells store hereditary info in form of double stranded molecules of... - CORRECT ANSWERS--DNA Made up of nucleotides - CORRECT ANSWERS--DNA Consists of sugar (deoxyribose), phosphate molecule with nitrogen containing side group or base - CORRECT ANSWERS--Nucleotides
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Study of structure, function, and behaviour of cells - CORRECT ANSWERS--Cell Biology All living cells store hereditary info in form of double stranded molecules of... - CORRECT ANSWERS--DNA Made up of nucleotides - CORRECT ANSWERS--DNA Consists of sugar (deoxyribose), phosphate molecule with nitrogen containing side group or base - CORRECT ANSWERS--Nucleotides ...are of four types: Adenine, guanine, cytosine, and thymine - CORRECT ANSWERS--Bases ...binds only to thymine or uracil - CORRECT ANSWERS--Adenine ...binds only to cytosine - CORRECT ANSWERS--Guanine Each sugar linked to another via...creating polymer chain - CORRECT ANSWERS-- Phosphate group Bonds between bases on diff strands - CORRECT ANSWERS--Hydrogen bonds Bonds between phosphate backbone - CORRECT ANSWERS--Covalent bonds Each strand serves as template to synthesise new DNA strand complimentary to itself - CORRECT ANSWERS--DNA replication Templated polymerisation, DNA sequence used as template for production of RNA - CORRECT ANSWERS--Transcription RNA molecules used to synthesise proteins - CORRECT ANSWERS--Translation Consists of ribose, phosphate, Adenine, guanine, cytosine and uracil - CORRECT ANSWERS--RNA Transcripts function as intermediates in transfer of genetic info, they serve as... - CORRECT ANSWERS--mRNA Single-stranded, flexible backbone which can fold back on itself - CORRECT ANSWERS--RNA Unbranched polymer chains made from amino acids AKA polypeptide - CORRECT ANSWERS--Proteins
Proteins can fold into specific conformations to become...that catalyse reactions - CORRECT ANSWERS--Enzyme A triplet of nucleotides is known as a... - CORRECT ANSWERS--Codon Each codon specifies a single... - CORRECT ANSWERS--Amino acid Genetic code read out by special class of RNA (anticodon) attached to an amino acid - CORRECT ANSWERS--tRNA Composed of protein & rRNA, synthesises proteins - CORRECT ANSWERS-- Ribosomes Segment of DNA transcribed into mRNA coding for protein or RNA molecule, known as... - CORRECT ANSWERS--Genes Consumption of...fundamental to life else cell decays toward chemical equilibrium & death - CORRECT ANSWERS--Free energy Each cell is enclosed by...a selective barrier - CORRECT ANSWERS--Plasma membrane One part hydrophobic another part hydrophilic - CORRECT ANSWERS--Amphiphilic Feeding on other living things or the organic chemicals they produce - CORRECT ANSWERS--Organotrophic Harvest energy from sunlight - CORRECT ANSWERS--Phototrophic Capture energy from energy-rich systems of inorganic chemicals in environment - CORRECT ANSWERS--Lithotrophic Keep DNA in a nucleus - CORRECT ANSWERS--Eukaryotes Have no distinct nuclear compartment to house DNA - CORRECT ANSWERS-- Prokaryotes Form of prokaryote, resemble eukaryotes in machinery for handling genetic info - CORRECT ANSWERS--Archaea In storage & copying genetic info random errors occurred called... - CORRECT ANSWERS--Mutations Existing gene can be randomly modified by changes in DNA sequence - CORRECT ANSWERS--Intragenic mutation Existing gene can be accidently duplicated - CORRECT ANSWERS--Gene duplication
Model organism, small weed - CORRECT ANSWERS--Arabidopsis thaliana Model organism, nematode worm - CORRECT ANSWERS--Caenorhaditis elegans Model organism, fly - CORRECT ANSWERS--Drosophilia melanogaster Model organism, zebrafish - CORRECT ANSWERS--Danio rerio Model organism, mouse - CORRECT ANSWERS--Mus musculus Model organism, human - CORRECT ANSWERS--Homo sapien Genes are carried on... - CORRECT ANSWERS--Chromosomes